Automatic sand-drying equipment



- July 2,1929. F. D. cHADwlcK AUTOMATIC SAND DRYNG EQUIPMENT Filed April 4, 1928 the previously made units betere the worn units which Generally `resulted nr CTI l'latented, .truly 2,

ijhlllrllll) Ydi?l-li'l'llS PATENT i FRANK n.k cnanwrcn, or OTTAWA, ILLINOIS).

AUTOMATIC SAND-DRYING EQUIPMENT.

Application letl Apr-il 4,

My ii'iveiition relates `to automatic sand drying` equipment and has tor its object the production et' such. equiynnent in which a largequantity oi wot sand or other similar material can be dumped or conveyed .into a suitable large receiving; means by any of the usual means employed for such purposes, said material beingr retained on a `novel .means which not only supports the entire loading' of the material thus duinped in but contains a novel and extremely simple and extremely efficient means tor removing the moist-ure from the material and permitting it as itdrys to iloiv through into a belt conveyor system which removes it to the dry storage or cars tor shipment. l

Its lfurtherobjeiict is to produce auch an equipment which. very simple in construe tion and comprised of unitshavinp; a large exposed vertical drying sur'lace per unit olf horizoiil'al arca as Well as per unit oli' cubicA contents ot material exposed to said heatii'ipjf surface, and these units are so connected and located in relation to cach other ,so that any one unit can he removed Without in any manner `disturbing;` any ot the remaining units. i i l i t is Well known that the moisti'ufe in this material is extremely corrosive and so that the material such units' are made oi Iis Wasted i units need rtreit was necessary at times to reumve many ot' L: a loss oli' these umts making it necessary to replace them by means et new units which it is evident Awas very expensive all otn which avoided by my novel construction. .A further (.ibject oi my invention is the production of such an Fecpiipment wherein while the large `area ol' verticallyv imsitione-l heatingsurface is exposed to a small area o'l'v horizigmtal material arezn the saine time a large area oi ventflatiup4 fugace per unit ot im ,rial is also prmiided to remove the moisture as it is driven 'from the previously wet sand or other material.

Il 'further object of my invention is the production oi' such an equipment that not only highly etlicient but is extrmnely simple and ineiipensive to construct and exceptionally durable and therefore not subject to as frequent replacements ot units that Was always necessary with such equipment before my invention.

`sand or like niaterial to he treated,

reachingy was. serial No. eer/,213.

I attain these objects by the means shown in the accompanying drawings iu. which:

Finn l is a side view of my automatic sand drying; equipment having` a part of the front side Wall. removed to show the arrangement of the units comprising4 same.

Fig. 2 a vertical` cross sectional view alone` a line AB otFigure l.

Similar parts are represented by the same numerals throughout the several views.

In the drawings l rei'n'esents the loading cliamher of my automaticisand drying; equip ment and 2 is the usual large quantity ot The chamber l is slqiported hy the .l beams 5l which rest on similar beams 4l which carry the loadings to the usual Walls of the building or suitable piers Which are not shown. in the drawings.

6` is one of the plurality7 of special vertical units which are preferably made oi' cast iron oi' such shape that they have external apertures 5 and that they have an interior divided heating space for a.` suitable heating` medium such as steam, Which are seyurrated from each other by the spaces Tin each ot the individual integral sectional parts S comprising the complete unit G, the units 8 being' connected with each other and eom municating with each other both at the top and hot-tom of said individual units so that the steam or heating` medium` can readily rea-ch the entire inter-.ionsurtaeeor spaces.

let-Ween `each of these vertically positioned units 6 is a horizontallypositioueil unit 5) which is suitably supported by means olf' supports l0 and holds the sand hack in Contact `with the vertically positioned units G until it is sutliciently dried to permit it to pass by between 9 and the units G. W'hen it does soit encounters a plurality of smaller individual units 1l which may be similarly heated by an internal medium or may act as regrenerators hy taking' the heat from the highly heated sand as it passes through them and in turn giving bach the heatto assist in drying` some of the sand Still hav-` ing; some moisture in it that worked through too rapidly trom above after liow had previously been checked by such a condition of moisture. The tlovv ot sand through my sand drying; equipment is more or less puleating; in action, that is. the flow While it is continuous varies, first larger then smaller etc. which regulation of tloiv is due to this regulating regenerative idea which thus iee f gives ,a ymuch, higher` quality, as far as dryness is concerned, to the material dried by my equipment.

Immediately abovel each of my vertically positioned units 6, I provide an angular shield 12 which acts asa distributer of the YWet material in order to properly distribute the sand between the individual parts "8 of said units 6 as Well as to assist in supportingtheheavyloading due to the material '2. The shields 12 properly distribute the wetmaterialzso as to retain as large a part off the Ventilating spaces 5 and 'T as possiblevso that there is a maximum otrentilating space which isfcontinuous through the units 6.v Air entering the opening 13 in the wall 14f ofychamber 1 can pass through said-Ventilating areas until fit enters the :flue 15 'through aperture ltand passes 'outithrouglr'tlielchimney-l?. 18 is a suitable piece of leather or rubber belting which is inserted as shown-.to keep 'the sand from escaping vthrough the: openings 13vv andl5. 19, isa hopper for; receiving the dried sand -wlrich passes out through?apertures 20 in Y. thesbottomfo-f the hopper .19 into a conveyor belt2l+to the usual storagey or icar loading equipment. 22 indicates alarge-pipe for supplying steam tand 23: indicates a@ valve for shuttingofifth'e steam from unitzto replace. saine -Wl'ien-fnecessary.

From thel above description-itav-ill be seen #that my automatic sand-drying equipment Will f successfully i handle large quantities of Wet materialandwill not -permit it topass lunless: it isthoroughlydried and that4 the i units. comprising sameVA are veryfaccessible tively connectedwith-each other, saidunits extendingin length acrosssaidchamber and `having-1'spacesbetween said units, horizontally positioned individual heating elements placed between said units and a regenerative deliver-ing means supported on said beams.

2. In automatic sand drying equipment, a chamber, means for supporting said chamber, regenerative delivery means on said supporting means, a plurality of heating units each comprising a plurality ot integral vertically positioned sectional parts having centrally disposed ventilating apertures placed adjacent to each other and internally and operatively connected with each other said units extending across said chamber and having spaces between said units, horizontally positioned individual heating elements placed between said units and distributing means associated with heating units.

3. In automate sand drying equipment, a chamber, supporting means for said chamber, regenerative delivery and regulating means adjacent to said supporting means, al plurality ofheating units each comprising a plurality of integral vertically positioned sectional parts having centrally disposed ventilating apertures placed adjacent to each other and internally and operatively connected with each other said units extending across the chamber and having spaces between said units, horizontally positioned individual heating elements placed' between said units, distributing means associated with the heating units and means tor-removing the vapors given off around said heating units.

4. In automatic sand drying equipment, a chamber, supporting means for said chamber, regenerative delivery and regulating means adjacent to said sujiporting means. a, plurality of heating units each comprising a number of integral vertially positioned sectional pai'ts having centrally disposed Ventilating apertures placed adjacent to each other and internally and operatively connectedwith each other and having spaces betweensaid units, horizontally positioned heating elements placed between said units, distributing means associated with said heating units and a stack connected with thc said ventilatiiig apertures.

FRANK D. CHADlVICK. 

